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A Cusco pillowball bushing assembly for Subaru GRB rear trailing arm fitment, intended to replace the factory rubber bushings with a pillowball-style component to reduce deflection. This upgrade helps stabilize rear geometry under load, improving responsiveness and maintaining alignment during spirited driving. It’s a direct-fit option for owners seeking crisper rear suspension behavior without major modifications.
Cusco Pillowball BC GRB Rear Trailing Arm F
